Upgrade Ubuntu from 16.04 to 18.04

#1

Hi,

Are there any instructions about what must be changed in all “scw” scripts after upgrading an Ubuntu instance from 16.04 to 18.04? I’ve tried to get them from Scaleway’s GitHub repos with no success. After upgrading it’s a complete mess with interfaces and even with manual overriding IPs and gateways, the instance doesn’t connect with the world outside.